There were over 21 million people across parts of at least nine states under a flash flood watch. Staggering images emerge ...

A "red flag" warning means dangerous wildfire conditions are happening or about to happen. The National Weather Service says ...

A "particularly dangerous situation red flag warning" has been issued for parts of Southern California, as more extreme winds are expected to impact the region and deadly fires continue to burn.

While the search continues for survivors of the Texas flood, a clearer picture has emerged of how it turned catastrophic, and ...

The National Weather Service has introduced a new warning called the "particularly dangerous situation" (PDS) red flag ...

MONTANA - A new fire warning called a "Particularly Dangerous Situation" (PDS) Red Flag Warning has been introduced by the ...

One of the worst floods in a Texas rivers' history left dozens dead over the Independence Day weekend. What to know about ...

Heavy rainfall causes Frio River to rise 16 feet above normal in Uvalde County, Texas, prompting evacuations of residents and ...

The National Weather Service issued a series of upgraded warnings in quick succession as rivers across the region began to rise.

Here's a guide to understanding "particularly dangerous situation" red flag warnings, containment, and other terms related to the devastating fires that have left much of the LA area in ruins.